That's a question more people should probably ask themselves. I screwed around with various ads, affiliate links, and so forth at one point. I fairly quickly came to the conclusion that the small amount I was bringing in wasn't worth having the ads/code/etc. on my site.

I might feel differently if it were a site focused on a particular topic, ads might be relevant to the audience, and the income were material. But, as it was, it just seemed better to keep it non-commercial.